Method for preparing phenylethylene by oxidation-dehydrogenation of ethyl benzene

Method for preparing phenylethylene by oxidation-dehydrogenation of ethyl benzene

The invention discloses the method used ethyl benzene oxidative dehydrogenation to prepare styrene. Its features are as follows: making ethyl benzene touching with catalyst under carbon dioxide atmosphere; the mol ratio of carbon dioxide and ethyl benzene is 5-15; reacting temperature is 673K-873K;...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: SHAOBING,ZHANG YU
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The invention discloses the method used ethyl benzene oxidative dehydrogenation to prepare styrene. Its features are as follows: making ethyl benzene touching with catalyst under carbon dioxide atmosphere; the mol ratio of carbon dioxide and ethyl benzene is 5-15; reacting temperature is 673K-873K; liquid volume airspeed of the ethyl benzene is 0.1-2.0h-1; the catalyst is molecular sieve contained vanadium. The method can effectively prolong steady running time under high ethyl benzene conversion rate and styrene selectivity.